darkcomet | 3916529a43553809ac434ad23682c47670d3c70911149264005f0c5d602fe3e3

General

Target

JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe
Size

480KB
MD5

4708d66f6f8496ecf88dd0ac1680dacd
SHA1

6bdab58ba50f6e9f3466a69417734d36acd2e8b6
SHA256

3916529a43553809ac434ad23682c47670d3c70911149264005f0c5d602fe3e3
SHA512

c767c117a109a20eda830a729b5183c47caaa95e8e76ec4918b7fd24cba230e0b35718c03c158ce666c3d2b475d8482251e772b8ed8325a2f99b8e365b34df8d
SSDEEP

12288:hy1lFipP5dFl9DhwZ0PRfwzp35HGPHb6kyQwTRHbVDU:hy1lc3TlnwkOaHhE

Score

10^/10

darkcomet ms-dos discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

ms-dos

C2

pourmoi.zapto.org:2000

pourmoi.zapto.org:200

pourmoi.zapto.org:1604

pourmoi.zapto.org:164

pourmoi.zapto.org:80

Mutex

DC_MUTEX-HM3EBEZ

Attributes

gencode
.o3or#SP7wV0
install
false
offline_keylogger
true
password
da06101266
persistence
false

rc4.plain

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet
Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\winsys = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winfile.exe"	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30

UPX packed file 12 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2748-11-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-14-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-7-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-5-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-13-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-19-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-20-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-18-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-17-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-15-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-30-0x0000000000400000-0x00000000004D8000-memory.dmp	upx
behavioral1/memory/2748-32-0x0000000000400000-0x00000000004D8000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2640	2748	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe

Suspicious use of AdjustPrivilegeToken 26 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe
Token: 33	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe
Token: SeIncBasePriorityPrivilege	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe
Token: SeIncreaseQuotaPrivilege	2748	vbc.exe
Token: SeSecurityPrivilege	2748	vbc.exe
Token: SeTakeOwnershipPrivilege	2748	vbc.exe
Token: SeLoadDriverPrivilege	2748	vbc.exe
Token: SeSystemProfilePrivilege	2748	vbc.exe
Token: SeSystemtimePrivilege	2748	vbc.exe
Token: SeProfSingleProcessPrivilege	2748	vbc.exe
Token: SeIncBasePriorityPrivilege	2748	vbc.exe
Token: SeCreatePagefilePrivilege	2748	vbc.exe
Token: SeBackupPrivilege	2748	vbc.exe
Token: SeRestorePrivilege	2748	vbc.exe
Token: SeShutdownPrivilege	2748	vbc.exe
Token: SeDebugPrivilege	2748	vbc.exe
Token: SeSystemEnvironmentPrivilege	2748	vbc.exe
Token: SeChangeNotifyPrivilege	2748	vbc.exe
Token: SeRemoteShutdownPrivilege	2748	vbc.exe
Token: SeUndockPrivilege	2748	vbc.exe
Token: SeManageVolumePrivilege	2748	vbc.exe
Token: SeImpersonatePrivilege	2748	vbc.exe
Token: SeCreateGlobalPrivilege	2748	vbc.exe
Token: 33	2748	vbc.exe
Token: 34	2748	vbc.exe
Token: 35	2748	vbc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2820 wrote to memory of 2748	2820	JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe	30
PID 2748 wrote to memory of 2620	2748	vbc.exe	31
PID 2748 wrote to memory of 2620	2748	vbc.exe	31
PID 2748 wrote to memory of 2620	2748	vbc.exe	31
PID 2748 wrote to memory of 2620	2748	vbc.exe	31
PID 2748 wrote to memory of 2640	2748	vbc.exe	32
PID 2748 wrote to memory of 2640	2748	vbc.exe	32
PID 2748 wrote to memory of 2640	2748	vbc.exe	32
PID 2748 wrote to memory of 2640	2748	vbc.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_4708d66f6f8496ecf88dd0ac1680dacd.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2748
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat" "
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2620
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 628
    3⤵
    - Program crash
    PID:2640

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpcmd.bat

Filesize
70B

MD5
73b0495dfd90f2f77a64d3ac7f6e7c03

SHA1
0503c56481fda524b90139b4d2e0b686765c355f

SHA256
0a4c374db7dcbe8944a2a3fc0d774247861318cc55494fe8b6f001fe46a69fc2

SHA512
9d6fbe22f8441cf2b78506bde2535e4137af1c200fe36272d4fb0adea8f33360c93cb1619c3b667514f185d632a078760ebc0f47eeb0825979e468a7c2c88e39

Download Submit
memory/2748-3-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-20-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-11-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2748-14-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-7-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-5-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-32-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-30-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-13-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-19-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-18-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-17-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2748-15-0x0000000000400000-0x00000000004D8000-memory.dmp

Filesize
864KB

Download
memory/2820-16-0x0000000074C20000-0x00000000751CB000-memory.dmp

Filesize
5.7MB

Download
memory/2820-1-0x0000000074C20000-0x00000000751CB000-memory.dmp

Filesize
5.7MB

Download
memory/2820-2-0x0000000074C20000-0x00000000751CB000-memory.dmp

Filesize
5.7MB

Download
memory/2820-0-0x0000000074C21000-0x0000000074C22000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads